tza3015hw NXP Semiconductors, tza3015hw Datasheet - Page 13

• Manufacturer Part Number: tza3015hw
• Description: 30 Mbit/s To 3.2 Gbit/s A-rate 4-bit Fibre Optic Transceiver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2003 Dec 16
handbook, full pagewidth
30 Mbit/s to 3.2 Gbit/s A-rate
4-bit fibre optic transceiver
RXNILFRAC = 1
CALCULATE
N and K
N = 2
n
yes
n.k =
Fig.8 Flowchart for calculating N and K.
k is fractional part
RXNILFRAC = 0
n is integer part
0.25
Write K j into registers C3h, C4h, C5h
bit rate
N = 2
k = k
k = k
and write into registers C1h, C2h
j = j
K 0 = 1
k = 0 ?
k
K j = 1
j
j = 21
END
k
0 ?
1 ?
f ref
no
yes
yes
yes
1
Convert N to binary
0.75
2
1
n
or E3h, E4h, E5h
M
or E1h, E2h
R
no
no
no
MCE413
13
N = 2
k = k
k
0.25 ?
n
yes
0.5
1
K j = 0
no
N = 2
k = k
k
0.75 ?
n
yes
0.5
1
decimal to binary
conversion of
fractional part
no
Preliminary specification
TZA3015HW